package com.centriole.service.workflow.util;

import java.security.MessageDigest;

/**
 * 作用：  MD5加密
 */
public class MD5Util {

	/**
	 * MD5加密盐值
	 */
	public static final String SALT = "microcore";
	
	public static String md5(String str) {
		MessageDigest messageDigest = null;
		try {
			messageDigest = MessageDigest.getInstance("MD5");
			messageDigest.reset();
			messageDigest.update((str).getBytes("utf-8"));
		} catch (Exception e) {
			e.printStackTrace();
		}
		byte[] byteArray = messageDigest.digest();
		StringBuffer md5StrBuff = new StringBuffer();
		for (int i = 0; i < byteArray.length; i++) {
			if (Integer.toHexString(0xFF & byteArray[i]).length() == 1) {
				md5StrBuff.append("0").append(
						Integer.toHexString(0xFF & byteArray[i]));
			} else {
				md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
			}
		}
		return md5StrBuff.toString().replace("-", "").toLowerCase();
	}
	
	public static void main(String[] args) {
		System.out.println(md5("123456"));
	}
}